What size is the tank? Sounds like you have stock lighting that comes with alot of tanks. You have very low light and alot of plants will not grow in such low lighting. Plants for such low light would include Anubia, Java Fern regular and Wendilov, Bolbitus, Four Leaf Clover (Marsilea quadrifolia), and crypts. You might want to consider upgrading to better lights down the road so you can grow a wider variety of plants. As for ferts it would be a good idea to use Seachems Flourish Comprehensive and API Leaf Zone (potassium and iron) once weekly after WC's.